USA closed its embassy in Tripoli on February 25. Moreover USA withdrew the official relations with this country. The White House informs about this. They said the USA embassy representatives will be evacuated from the country. State Department informs that at this point the question of security of USA citizens is most important.
They explained such strict measures with the Libyan government cruel treatment with own citizens, its killing. They are expecting this action of USA government will stop the mass murder in Libya.
For information, the coup d'etat invoked mass disorders in the country on February 15. On February 20 disorders spared over Tripoli, capital of Libya.